<template>
<div>
    <div class="search">
        <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音"/>
    </div>
    <div class="search-content" ref="search" v-show="keyword">
        <ul>
            <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
            
            <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
      
        </ul>

    </div>


</div>
</template>

<script>
import BScroll from "better-scroll";
import {mapMutations} from 'vuex'
export default {
  name: "CitySearch",
  props: {
    cities: Object
  },
  data() {
    return {
      keyword: "",
      list: [],
      timer: null
    };
  },
  computed:{
      hasNoData(){
          return !this.list.length
      }
  },
    methods:{
         handleCityClick(city){
          this.changeCity(city)
           this.$router.push('/')
      },
  },
  watch: {
    keyword() {
      if (this.timer) {
        clearTimeout(this.timer);
      }
      if (!this.keyword) {
        this.list = [];
        return;
      }
      this.timer = setTimeout(() => {
        const result = [];
        for (let i in this.cities) {
          this.cities[i].forEach(value => {
            if (
              value.spell.indexOf(this.keyword) > -1 ||
              value.name.indexOf(this.keyword) > -1
            ) {
              result.push(value);
            }
          });
        }

        this.list = result;
      }, 100);
    }
  },
  mounted() {
    this.scroll = new BScroll(this.$refs.search);
  }
};
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl';

.search {
    height: 36px;
    background: $bgColor;
    padding: 0 5px;
}

.search-input {
    box-sizing: border-box;
    height: 31px;
    width: 100%;
    padding: 0 5px;
    line-height: 31px;
    text-align: center;
    border-radius: 3px;
    color: #666666;
}

.search-content {
    z-index: 1;
    position: absolute;
    top: 79px;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    background: #eeeeee;
}

.search-item {
    line-height: 31px;
    padding-left: 10px;
    background: #ffffff;
    color: #666666;
}
</style>
